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Discussion Starter · #1 ·
I have five computers in a peer to peer LAN. Three Desktops are wired to a Linksys Modem Model WRT54G, and two laptops are connected via wireless to the same modem. Two printers are connected to the modem via wireless link and a plotter is hard wired to the LAN.

One of the desktop machines and one of the laptops operate on Windows Vista, the other three computers operate on XP.

My problem is that the XP machines "disappear" from the network after about an hour of inactivity. If I reboot the XP machines, I can go to Windows Explorer and I can see and access files in the other machines as expected, but after some time has passed and I attempt the same search the XP machines are not in the network to be accessed. Two of the XP machines have been recently reformatted by reinstalling the OS and the problem persists.

Has anyone come across something like this?

TIA for your input. CM
 

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When the XP machines disappear from the network, can you still ping them by name? By IP address? From the XP machines, can you still see the Vista machines after they disappear from the network?
 

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Discussion Starter · #3 ·
Thanks for the reply. The answer is Yes, I can ping ALL the XP machines and I get four out of four replies in less than 1 mS. I can also ping the Vista machines, but the Vista machines do not disappear from the network as far as Windows Explorer goes, I can see their icons and access their shared folders. Does this help? Thanks, CM
 

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Check your Services are Started on all PCs:
  • COM+ Event System (for WZC issues)
  • Computer Browser
  • DHCP Client
  • DNS Client
  • Network Connections
  • Network Location Awareness
  • Remote Procedure Call (RPC)
  • Server
  • TCP/IP Netbios helper
  • Wireless Zero Configuration (XP wireless configurations only)
  • WLAN AutoConfig (Vista wireless configurations only)
  • Workstation

Note: You can check the services in Control Panel, Administrative Tools, Services.

All of these services should be started, and their startup type should be automatic (or perhaps manual).

If a service is not running, open it's properties and check the dependencies. Check each of the dependencies and see which one is preventing the service from running. Checking the event log is also a good idea here, there may be clues to what is failing.
 
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